react-scroll-effects/demo/bower_components/animate.css/source/attention_seekers/flash.css

React component to animate elements on scroll with animate.css

@keyframes flash {
  0%, 50%, 100% {
    opacity: 1;
  }

  25%, 75% {
    opacity: 0;
  }
}

.flash {
  animation-name: flash;
}